2. Jack Black True Volume Thickening Shampoo ($28)
This definite contender for one of the best hair thickeners on the market, which isn’t surprising considering Jack Black products are typically incredible. Ingredients such as creatine and wheat protein give more thickness to your hair, making it look a lot fuller and all of that without any leaving any scalp flake.
Now there are a few synthetic additions to the formula, so you should be aware of that, although the good part is that you won’t find any sulfates in this one. It comes highly recommended for guys who want to make their hair look thicker. Additionally, the solution makes the hair feel softer and cleaner than with other shampoos.
